The Senior Backend Engineering Lead will spearhead the design, implementation, and scaling of our core backend services, ensuring high reliability, security, and performance. Working closely with product managers and DevOps, the role demands strong technical leadership, mentorship of junior engineers, and hands‑on involvement in architecture decisions, code reviews, and deployment pipelines. The ideal candidate brings 6‑9 years of backend experience, expertise in AWS, PostgreSQL, Node.js, and a proven track record building scalable transactional and gamification systems.